<template>
  <!--所有的item都展示同一个图片, 同一个文字-->
  <div class="tab-bar-item" @click="itemClick">
    <div v-if="!isActive"><slot name="item-icon"></slot></div>
    <div v-else><slot name="item-icon-active"></slot></div>
    <div :style="activeStyle"><slot name="item-text"></slot></div>
  </div>
</template>

<script>
export default {
  name: 'TabBarItem',
  props: {
    path: String,
    activeColor: {
      type: String,
      default: 'red'
    }
  },
  data () {
    return {
      // isActive: true
    }
  },
  computed: {
    isActive () {
      // /home -> item1(/home) = true
      // /home -> item1(/category) = false
      // /home -> item1(/cart) = true
      // /home -> item1(/profile) = true
      return this.$route.path.indexOf(this.path) !== -1
    },
    activeStyle () {
      return this.isActive ? { color: this.activeColor } : {}
    }
  },
  methods: {
    itemClick () {
       this.$router.replace(this.path)
    }
  }
}
</script>

<style lang="less" scoped>
.tab-bar-item {
  flex: 1;
  text-align: center;
  height: 0.49rem;
  font-size: 0.12rem;
  img {
    width: 0.2rem;
    height: 0.2rem;
    margin-top: 0.03rem;
    margin-top: 0.065rem;
    vertical-align: middle;
    margin-bottom: 0.02rem;
  }
  .item-text {
    margin-top: 0.05rem;
  }
}
</style>
